Robot in Waiting!

The Underground Harbor

The cave opens into a vast port filled with a full sized pirate galleon, weathered buildings, and even parked vehicles, all preserved beneath the sea. Bulma and Krillin marvel at the scale of the find while dreaming of the treasure tucked away somewhere in the darkness. General Blue crouches out of sight, plotting how to murder the boy and walk away with everything. Goku suddenly senses a presence and assures Krillin that it is not a human one. A hulking pirate robot crashes out of a storehouse wielding a blade in one hand and an arm cannon in the other, swinging wildly at the intruders.

Goku Versus the Guardian

Krillin chops the sword blade clean off with his bare hand and the two martial artists ready a combined attack on the machines legs. Blue notes their use of kenpo with grudging appreciation. The robot lands a heavy punch that knocks Krillin back, and its cannon begins firing in rapid bursts that drive the fighters behind a stack of crates. Goku orders his friends to run ahead and find the Dragon Ball while he handles the machine. A flying kick sends the robot tumbling into the harbor water, and the instant Goku peers over the edge a mechanical tail whips up, drags him under, and starts pumping him full of electricity.

Goku Wins, Blue Cheats

Goku rips the tail free, rockets to the surface, then pole vaults up onto the nearest rooftop with his Nyoi Bo. When the robot breaches the water searching for him, he drops like a meteor and punches clean through its chest, triggering a massive explosion. As Krillin and Bulma flee the shaking tunnels, Krillin chalks arrow marks at each fork so Goku can catch up. General Blue trails them at a distance, erases one arrow, and draws a new one pointing in the opposite direction. Moments later Goku arrives at the junction and dutifully follows the false lead.